参数资料
型号: M38267E8GP
元件分类: 微控制器/微处理器
英文描述: 8-BIT, OTPROM, 4 MHz, MICROCONTROLLER, PQFP100
封装: 14 X 14 MM, 0.50 MM PITCH, PLASTIC, LQFP-100
文件页数: 38/82页
文件大小: 1377K
代理商: M38267E8GP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
3826 Group
40
Fig. 41 Key matrix of telephone and rating frequency
1 2 3
4 5 6 B
7
8 9
*
0 #
A
C
D
697Hz
770Hz
852Hz
941Hz
1
2
0
9
H
z
1
3
6
H
z
1
4
7
H
z
1
6
3
H
z
Low group
frequency
High group frequency
Rating frequency (Hz)
697
770
852
941
1209
1336
1477
1633
n (Timer value)
89
80
72
65
51
46
41
37
Error frequency (Hz)
–2.6
1.6
4.2
5.9
–7.1
–6.3
11.1
11.7
Deviation (%)
–0.367
0.208
0.488
0.630
–0.580
–0.460
0.750
0.720
Output frequency (Hz)]
694.4
771.6
856.2
946.9
1201.9
1329.7
1488.1
1644.7
Table 10 Example of frequency accuracy (at f(XIN) = 4 MHz)
Low Groupt Frequency, High Group Frequency
Low group frequency and high group frequency are as follows.
Table 10 shows the example of frequency accuracy (at f(XIN)=4
MHz).
(1) Low group frequency
697 Hz
770 Hz
852 Hz
941 Hz
(2) High group frequency
1209 Hz
1336 Hz
1477 Hz
1633 Hz
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